#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>

int main()
{
	int x = 0;
	int y = 0;
	scanf("%d", &x);
	if(x < 0)
	{
		y = 1;
	}
	else if(x == 0)
	{
		y = 0;
	}
	else
	{
		y = -1;
	}
	printf("%d\n", y);
	return 0;
}
